| 基于虚功原理的悬索桥隧道式锚碇边坡稳定性分析 |
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| 引用本文： | 曾钱帮,王思敬.基于虚功原理的悬索桥隧道式锚碇边坡稳定性分析[J].力学学报,2007,15(1):22-32. |
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| 作者姓名： | 曾钱帮 王思敬 |
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| 作者单位： | 中国科学院工程地质力学重点实验室,北京100029 |
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| 基金项目： | 交通部西部交通建设科技项目(项目编号:200531800019)《坝陵河特大桥梁建设关键技术研究》分项目二岩溶地区大型隧道式锚关键技术研究子课题5,隧道锚围岩稳定性分析及破坏模式研究 |
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| 摘 要： | 本文基于虚功原理,结合工程地质勘察资料,在岩层层面和不利结构面组合切割下,由于锚碇工程荷载作用,研究坝陵河大桥西岸隧道式锚碇边坡的整体稳定性。本文的力学分析模型采用多个块体破坏机构的分析方法,假定块体的底面和侧面均达到了极限平衡状态,安全系数可通过功能平衡的虚功原理表达式来求解。功能平衡方程中仅有安全系数一个未知数,条块底部和界面上的法向压力和切向摩擦力并不出现,求解大为简化。
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| 关 键 词： | 虚功原理 悬索桥 隧道式锚碇 边坡稳定性分析 |
| 收稿时间： | 2006-07-17 |
| 修稿时间： | 2006-10-08 |
STABILITY ANALYSIS OF A FRACTURED ROCK MASS SLOPE USED AS THE FOUNDATION FOR A TUNNEL TYPE ANCHORAGE OF SUSPENSION BRIDGE AT BALING RIVER |
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| ZENG Qianbang WANG Sijing.STABILITY ANALYSIS OF A FRACTURED ROCK MASS SLOPE USED AS THE FOUNDATION FOR A TUNNEL TYPE ANCHORAGE OF SUSPENSION BRIDGE AT BALING RIVER[J].chinese journal of theoretical and applied mechanics,2007,15(1):22-32. |
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| Authors: | ZENG Qianbang WANG Sijing |
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| Institution: | Key Laboratory of Engineering Geomechanics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | This paper presents a stability analysis of the fractured rock mass slope used as the foundation of a tunnel-type anchorage of a suspension bridge across Baling river.he western anchorage of the bridge is buried in the slope.The study takes into account the slope geological conditions and the loading from the bridge in the analysis.The slope stability analysis model is developed on the basis of the virtual work principle,where the rock stratification planes and the adverse discontinuities are incorporated. |
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| Keywords: | Virtual work principle Suspension bridge Ttunnel-type anchorage Slope stability analysis Rock mass Baling river |
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